diff --git a/algorithms/mult21_add_170f.py b/algorithms/mult21_add_170f.py
new file mode 100644
index 0000000..776bd30
--- /dev/null
+++ b/algorithms/mult21_add_170f.py
@@ -0,0 +1,10 @@
+DESCRIPTION = "MULTIPLY 21 and ADD (0x170F base)"
+TYPE = 'unsigned_int'
+TEST_1 = 4233774810
+
+
+def hash(data):
+    hash_value = 0x170F
+    for byte in data:
+        hash_value = (hash_value * 0x21 + byte) & 0xFFFFFFFF
+    return hash_value